Sharpener



FIG. 1 is a perspective view of the sharpener.

FIG. 2 is a top view thereof.

FIG. 3 is a bottom view thereof.

FIG. 4 is a left side view thereof.

FIG. 5 is a right side view thereof.

FIG. 6 is a front view thereof; and,

FIG. 7 is a back view thereof.

CLAIM The ornamental design for the sharpener, as shown.